The top in Bitcoin in Dec 2017 at $19700 down to $3128 is wave A. The move from $3128 to $13831 is wave B. This is wave C. If you put a Fib extension on these three numbers it yields a .618 Fib extension at $3800. That's where Bitcoin bounced from a few minutes ago and BIG. Could $3800 be the low? Time will tell.